对杂交中稻协优 63进行旱作膜秸覆盖处理 ,结果表明 :杂交中稻旱作膜秸覆盖处理间的库、源效应有显著差异 ,它与稻谷产量呈正相关。以够苗期为界的膜秸接力覆盖处理比不覆盖和全程覆秸处理增产40 % ,比全程覆膜和拔节前覆膜处理增产 1 5 % ;其群体总库容依次多 3 8%和 1 5 % ,经济产量源分别多 3 7%和1 9%以上 The results showed that there was a significant difference in the source and sink effects between dry and under-cover dry-crop hybrid rice treatments, which was positively correlated with paddy yield. The seedling stage of the membrane straw relay coverage than non-coverage and the whole straw treatment yield 40%, than the whole film and jointing pre-filming treatment yield 15%; its population total capacity followed by more than 3 8% and 15% more than the previous year, and more than 37% and 19% respectively of the economic output